Just ask them to repeat it slowly.

让他们慢慢再说一遍。

A I find it easier to understand if people speak slowly and clearly.

A 我发现如果人们说得很慢很清晰就很容易理解。

B I know what you mean.

B 我知道你的意思。

A It’s more difficult to understand if people speak quickly.

A 如果人们说话很快理解起来就难多了。

B Just ask them to repeat it slowly.

B 那就让他们慢慢再说一遍。

Remember the different ways you can ask someone to help you understand something.

记住请某人忙你理解某事的不同方法。